<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="/js/vue.js"></script>
</head>
<body>

    <div id ="app">
        <p>原始字符串:{{msg}}</p>
        <p>反转字符串:{{msg.split('').reverse().join('')}}</p>
        <p>计算属性反转: {{revMsg}}</p>
    </div>
    
    <script>
       let app =new Vue({
         el:"#app",
         data: {
			msg: 'Hello Vue.js !'
		},
		computed: {
			revMsg: function() {
			    return this.msg.split('').reverse().join('')
			}
		}
       })
    </script>  
</body>
</html>